Poincaré lemma
Lema de Poincaré
- Date
- 1886 · confidence high
- Place
- Paris, France
- Credited to
- Henri Poincaré
- Field
- Knowledge & symbols
What was discovered
Result by Henri Poincaré guaranteeing that every closed differential form on an open ball in Rⁿ is exact, a sufficient condition that became a basic tool of differential geometry and De Rham cohomology.
What it led to
- Foundation of De Rham cohomology
- Standard tool in differential geometry and mathematical physics
- Later generalization to manifolds with different topology